nowfound

Dev tools · alternatives · 2026

24 alternatives to I made a Mario Galaxy game with Claude Code and Three.js in 53 days

I'm the developer. Happy to share the process and learnings. Architecture: - Custom SoA ECS for cache-friendly iteration, zero allocations in hot loops. Benchmarked against bitECS/miniplex. - Process manager inspired by Game Code Complete's but data-oriented so processes are pure data, systems contain the logic. - Multi-field gravity with 5 types (point, parallel, segment, cylinder, convex hull) with spring-damped transitions between fields. - Rapier3D WASM with SIMD. Gravity-aware fake shadow system for playability. - WebGL 2 shared context between Three.js and Pixi.js. - Debug editor…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1MP

    I have been working on this game somewhat sparsely for the past three years or so. However, it is still in a very early stage, and there is a lot of work to do. One of my friends encouraged me to post about it here, since he felt people might find interesting how I don’t use any libraries for it. The game can be played on a browser by virtue of WebAssembly. There are native ports using either MiniFB or SDL2, but you have to build those yourself. I decided to write the game in C because I feel like it is a simple language that a lot of people can understand well enough, and I didn’t think I…

    2023 · zamfofex.neocities.org · its alternatives →

  2. 2MA

    hi all, I've always wanted to make my own game, but couldn't afford a thousand-dollar adobe (flash+photoshop) license. I'm not a talented programmer, have no degree in CS. But I understand some elements of design. So I got me a copy of ImpactJS, and after about 5 months of steep learning curve (at least for me), I managed to come up with a game. I also integrated it with a highscore and badge system, similar to what you get at Kongregate. You need to login with Google/OpenID to earn badges/scores. link is: http://www.hotbazooka.com/privatejoe hope to hear some feedback/questions from you guys!

    2011 · hotbazooka.com · its alternatives →

  3. 3

    👾 The code for my Three.js game dev experiments on YouTube. - SuboptimalEng/three-js-games

    2022 · github.com · its alternatives →

  4. 4IM

    A while ago I discovered three.js, a JavaScript library to manipulate 3D objects. It looked really interesting, but I had no real need for it... To change that I recently challenged myself to make one 3D web game per month with three.js. And I just release game #2, a puzzle game called Cuboid, and you can try it here: https://www.thomasfriday.com/cuboid/ Please let me know if you have any questions or feedback. Thanks!

    2023 · thomasfriday.com · its alternatives →

  5. 5

    Hi HN, I made this small game in my spare time. It's quite addictive, I spent a lot of hours playing instead of polishing it. My own highscore is 96,792. Source code is at https://github.com/MikeBellika/tile-game. It's made with react, tailwind, and framer motion. Hope you enjoy!

    2024 · bellika.dk · its alternatives →

  6. 6

    Hi HN! This is my first game — something I’ve always wanted to do. It’s a small browser game built with Phaser 3, React, and the phaser template (https://github.com/phaserjs/template-react-ts/). I made it in 2 days (like 8 hours in total real time) using gemini-cli. About 90% of the code was generated with AI, but I learned a lot by making fine tweaks. It only works on PC since it’s a typical WASD + R (reload) shooter. I’d love feedback on: - Gameplay (is it fun, too hard?) - Ideas for new features Thanks in advance! ps: I used cubes as a prototype, but now I kind of…

    2025 · cubic-zombies.pages.dev · its alternatives →

  7. 7

    It took me about a week to vibe code this 3D game engine with Opus 4.6 that I intend to use as a replacement for Three.js and React Three Fiber in my browser MMORPG, Mana Blade. I was not expecting to be able to reach that point so easily, but pretty much every feature took somewhere between 30 minutes and 1 hour - 1 to 3 prompts on average. It is vibe-coded in the sense that I haven't looked at the code, but I am very careful with my prompts and constantly have Claude reviewing the codebase, looking for performance and code quality improvements. It can reach 2000 draw calls on recent…

    Feb 2026 · github.com · its alternatives →

  8. 8

    I'm calling this "Vibe Discovery" — distinct from vibe coding because I didn't know the requirements upfront. Started with "make something with the accelerometer" and discovered through 6 iterations that I wanted a WebGL marble game. The interesting part was the dev setup: Claude Code running in Termux on a Redmi Note 9 (4GB RAM). The same-device feedback loop — code, test accelerometer, react, iterate — made rapid discovery possible in a way that laptop-to-phone deployment wouldn't.

    Jan 2026 · kikkupico.com · its alternatives →

  9. 9
    Craft▲11

    AI-Powered Next.js Framework: Build SaaS in days with Claude

    Oct 2025 · getcraft.dev · its alternatives →

  10. 10AI

    (space = reset) Fluid mechanics is an extremely interesting topic and I have been creative coding for a couple of months now. Therefore I started working on flow fields in processing. It had so much fun playing around with the different parameters in this project, I decided to rewrite in p5.js an added a control panel. You can change most of the parameters (within some constraints I thought to be reasonable), randomize the values and export and import settings. Hopefully some coders here get inspired and also join the great creative coding community.

    2024 · synapse.nugatio.com · its alternatives →

  11. 11

    My wife and I recently submitted to a mobile game jam on Newgrounds (yes, it's still around). What started as a question of whether we could do it somehow morphed into whether we could do without so many of the seemingly needless complications rampant in our respective industries. My wife thus did all the art as traditional frame-by-frame animation (no puppets or tweening) and I preceded without a game engine. I did use a pre-processor that gives JS a Lisp syntax (Parenscript), because C-syntax is gross. We hope the end result, while definitely of small scope, will serve to inspire some…

    2022 · github.com · its alternatives →

  12. 12

    This was an interesting porting project for a few reasons (IMO): - The original game is/was awesome and, from a programming perspective, a wonder -- smooth scrolling arcade game on a 128kb Mac in 1984... - The port was done with a lot of help from AI (mostly Claude Code, but some Gemini CLI as well). I'm a programmer; it wasn't vibe-coded. But I couldn't have done the port of 68k assembly without it. FWIW, Claude seemed better at actually porting the 68k assembly but Gemini was better at finding bugs. YMMV. - I love Redux and Redux Toolkit for state management. For the port, I put the…

    2025 · continuumjs.com · its alternatives →

  13. 13

    I recently started to learn code and created this game with next.js. please let me know your thoughts

    2024 · spendelonmuskmoney.org · its alternatives →

  14. 142P

    Hi HN! On Sunday I spent a couple of hours building a short 2d platformer ("Prince of Persia" style). What's interesting is how I built it. I went for a zero-code approach, and built the whole thing using OpenAI Codex CLI and agent skills (with the progressive disclosure paradigm). You can play the game here: https://acatovic.github.io/gothicvania-codex-demo/ You can see the full code, agent skills and a complete writeup here: https://github.com/acatovic/gothicvania-codex-demo Some takeaways: * This was one of the most enjoyable experiences ever! *…

    Feb 2026 · its alternatives →

  15. 15

    Hello everyone! I've finally finished my latest side project - a RPG game made in Blazor. It started as a small project to learn some Blazor (I'm .NET dev but kept mainly to backend and ASP.NET). I had such a good time coding it that at some point I decided to make a full featured game out of it. I might've have bitten off more that I could chew as RPGs have so many systems and elements but overall I think it worked out well, especially for a single person project. I want to hop on the next project soon so any comments/questions/tips than can make me better really appreciated!

    2024 · whimsicalwyrm.itch.io · its alternatives →

  16. 16

    I spent some time making this. I am a beginner with blender but I did my best :) I'm open to any and all feedback.

    2022 · honzaap.github.io · its alternatives →

  17. 17AM

    Hi everyone! I'm one of the developers behind this project. I wrote it with my two brothers, Daniel and Ricardo. For years the three of us have been curious about how multiplayer games work, which is why we decided to work on this project. Our goal was to gain a deep understanding of how different players can share the same 3D space, which is why we wrote our own tiny game engine instead of using something like Unity. We wrote the engine using C++ and OpenGL, and we then compiled it to WebAssembly using Emscripten so that it would run effortlessly on web browsers. We are really excited about…

    2022 · play.moonlightmuseum.io · its alternatives →

  18. 18

    Hey HN! We’re the team from Normal / Normcore.io. We built gamekit-cli, an open-source command-line tool for developing Unity games with Claude Code. We love working with Claude Code. It's great for creating quick prototypes, writing complex systems code, and test suites. However, we work a lot with Unity and found we couldn’t move anywhere near as fast with Unity projects as we could when working on backend code. Claude Code works best when it has the ability to compile the code it writes and test its own work. There wasn’t an easy way to do that with Unity, so we made gamekit-cli!…

    Jan 2026 · github.com · its alternatives →

  19. 19

    A platform for building games of ‘unprecedented size’

    2017 · its alternatives →

  20. 20

    Hi HN, I'm Oliver. I've been in the software and cloud engineering industry for a long time (28 years), and this past year genuinely changed how I think about coding. The bottleneck isn’t syntax anymore. It’s clarity. I now spend more time describing what I want, testing results, and refining instructions than writing code line by line. The spark for this project came from a presentation I gave at my son’s school in December, 2025. I expected mild interest. Instead, kids were completely engaged — hands up, pitching game ideas, iterating in real time. That made me question something I’d…

    Jan 2026 · pixelarcade.studio · its alternatives →

  21. 21AX
  22. 22

    Classic physics engine algorithms — SAT collision detection and Morton Z-curve indexing — become viable on-chain primitives only where the execution model supports dynamic object access at runtime. Here's why EVM, Solana, and Aptos can't run them, and Sui can.

    Apr 2026 · docs.merca.earth · its alternatives →

  23. 23IB

    A minimal coding blog

    2020 · elliotbonneville.com · its alternatives →

  24. 24

    I love Claude Code but got tired of having nothing to do while I waited for sessions to finish, and managing multiple sessions on the command line was getting annoying and I kept losing track of the tabs. I originally built a quick and dirty version of this for my own use, but decided to polish it up and make it open source. The idea is that you should be able to do all your agentic coding without leaving the tool or needing to go back to a traditional IDE. You can view the diffs, run your program, and merge your changes back. I support OSX and Linux right now, but could add Windows support…

    2025 · github.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →